Developing　bifunctional　oxygen　catalysts　with　high　efficiency　and　low　cost　to　replace　platinum-group　metal　catalysts　commonly　utilized　in　metal-air　batteries　is　criti-cally　desired.In　this　article,a　convenient　method　to　synthesis　NiFe　nanoparticles　hybridized　with　N-doped　carbon　nan-otube(NiFe@N-CNTs)is　reported.Electrocatalytic　per-formance　analysis　indicates　that　NixFe1-x@N-CNTs　offers　favorable　oxygen　reduction　reaction(ORR)kinetics(onset　potential(Eonset)is　0.87　V　and　half-wave　potential(E1/2)is　0.84　V),together　with　excellent　oxygen　evolution　reaction(OER)performance(an　overpotential　of　270　mV　to　drive　10　mA·cm-2).Contributed　by　the　synergetic　effect　between　NiFe　alloy　and　N-CNTs,when　being　utilized　as　air　cathode,rechargeable　Zn-air　batteries　present　superior　cycling　sta-bility　for　over　150　h.This　research　provides　a　universal　strategy　to　synthesize　the　hybrids　of　intertwined　carbon　nanotube　matrix　loaded　with　alloy　nanoparticles.